In addition to one count of murder each, the charges include a special-circumstance allegation of torture.

Monstrous allegations: Pearl Sinthia Fernandez (left) and her boyfriend, Isauro Aguirre (right), are accused of torturing and killing the woman's 8-year-old son

Angel: Gabriel, 8, was found unconscious and not breathing, suffering from a fractured skull, cracked ribs and cigarette burns to his body

County firefighters responding to a call in Palmdale last Wednesday discovered the boy, Gabriel, was not breathing. He died at a hospital Friday.

Investigators say the boy had a fractured skull, several broken ribs and cigarette burns.

Fernandez and Aguirre were expected to be arraigned Tuesday, but the hearing was postponed until June 11. Prosecutors will decide at a later date whether to seek the death penalty in the case.

It all started at around 11pm last Wednesday, when first responders arrived at a home in the 200 block of East Avenue Q-10 in Palmdale after receiving a report that a young boy was not breathing, Daily News Los Angeles reported.

Gabriel was found unconscious with markings around his ankles suggesting he may have been tied up, police said.

The 8-year-old was taken to Children's Hospital Los Angeles in critical condition, but succumbed to his injuries Friday.

Gabriel's two siblings, ages 10 and 12, were found in the Palmdale apartment unharmed, the local station KTLAreported. They were taken into protective custody.

Crime scene: Firefighters responded to this home in the 200 block of East Avenue Q-10 in Palmdale after receiving a report that a child was not breathing

Horrific claims: Police say Gabriel had marking on his ankles, suggesting that he may have been tied up

Slain angel: The mother of the little boy told police that she was present for his assault, but did nothing to stop it

History of violence: Fernandez had previously been charged with cruelty to a child likely to produce great bodily injury

When questioned by police, the 32-year-old man allegedly admitted to causing the injuries to the young boy

Gabriel's mother allegedly told investigators that she was present during the assault on her son, but did nothing to stop it.

Family divided: Fernandez's own father said it was his daughter who was responsible for his grandson's death

However, Gabriel’s grandfather toldNBC Los Angelesin Spanish that he believes it was his daughter, Fernandez, who is responsible for her son's death.

He said that the child had lived with the grandparents until five months ago, but the 29-year-old mother was allowed to regain custody of him.

Aguirre's family rallied around him, with his mother and other relatives insisting that he is innocent.

'He loved those kids. She did it, and everybody knows she did it. Even her family knows she did it,' said Aguirre's cousin.

Fernandez had previously been charged with cruelty to a child likely to produce great bodily injury.

Gabriel’s grandfather said that Fernandez and Aguirre's neighbors called the Department of Child and Family Services to report the abuse, but nothing was done about their complaint.

A group of angry protesters carrying posters and pictures of Gabriel gathered outside the courtroom Tuesday, demanding justice and pointing a finger of blame at the DCFS for failing to protect the little boy.

County Supervisor Michael Antonovich has called for investigation of all social workers and supervisors involved in Gabriel’s case in an effort to determine why the boy was not removed from his mother's custody.

Public outcry: Protesters carrying posters and pictures of Gabriel gathered outside the courtroom, demanding justice and blaming the Department of Child and Family Services for failing to protect the little boy